distutils deprecates 'license' distribution option

[Anton Vredegoor]

Distutils emits a warning for my setup script:

$ python setup.py build
/usr/local/lib/python2.3/distutils/dist.py:213: UserWarning: 'licence'
distribution option is deprecated; use 'license'
  warnings.warn(msg)

Could someone please point me in the direction of documentation about
how to write a setup.py script using 'license'?

Anton